Designing CMDB data models with good utility and limited complexity

CMDBs are critical for ITSM, but difficult to implement successfully. A one-size-fits-all silver-bullet solution for CMDB design is very far away. Patterns can serve as a toolset to aid in CMDB design. Common language for talking about CMDB data and information modeling. Building up a stock of reusable designs. The three exemplary patterns presented... aim to reduce complexity of the CMDB, while maintaining or enhancing utility; do this either by reducing the number of CIs and relationships or by (to achieve a maintainable, easily visualized and understandable model) Are general design patterns, but can serve as a basis for more specific patterns and CI templates (for common components, bits of infrastructure design etc.).